MEP 8_Review

A

100

Expand: 

(2x+3y)(x²+3xy²-5x²y)

2x³-9x²y²-10x³y+3yx²+9xy³

200

Least common multiple of 60 & 72:

60: 2 * 2 *    * 3 *   * 5

72: 2 * 2 * 2 * 3 * 3 * 5

LCM: is the smallest number that is a multiple of both (we choose highest power of common factors)

2*2*2*3*3*5=360 

300

write into fraction: 16 1/2%

33/200

400

Find the gradient  and y-intercept of the following lines:

3y+5x=1

y=-5/3(x)+1/3

m=-5/3

y0=1/3

500

1. Explain and find the speed in time (5,8)

2. and (8,12)

1. 300/3=10

2. 0

B

100

solve:

3(4x-3)=21

x=5/2

200

Evaluate the following:

2-3*5+4=
(2-3)5+4=

-9

-1

300

Make x the subject:

3y=(2x-5)1/2

x=3y+5/2

400

1.  Write a lines parallel to y=3x-1

y=3x+10

500

1. In the following similar triangles, lines AE and DC are parallel.

2. Write the equal angles.

B1=B2

BEA=BCD

BDC=BAE

C

100

factor:

5x⁷y-20x²y³+15x³zy

5x²y(x⁵-4y²+3xz)

200

1/(1+(2/(3-1/5)))

7/12

300

make x the subject:

5x-6y=4

x=(6/5)y+4

400

write a line perpendicular to y=2x-1

y=-1/2(x)+15

500

1. In the following similar triangles, lines AE and DC are parallel. Find the area of triangle BCD if the area of the triangle AEB is equal to 100cm^2. and scale factor is 2
   
   

A=25 cm^2

D

100

Factor:

a²b-ab²

ab(a-b)

200

3 2/4 / 5 1/7

49/72

300

1. Find the slope and equation of the line passing through A(−7,4) and B(5,−2).

-1/2

400

Write a line equation with slope of -½ and passing through (1,3)

y=-1/2(x)+7/2

F

100

Highest common factor of 20 and 30: 

HCF: the largest number that is the factor of both

20: 1,2,4,5,10,20

30: 1,2,3,5,6,10,15,30

HCF: 10

"the highest power of common factors" in prime factorization method: prime tree

200

Write into fraction:

30%

3/10

300

Find the gradient  and y-intercept of the following lines:

y=3x-2

m=3

y0=-2

400

1. Convert 48km/h to m/s.

480/36=13.3 m/s